Dapchi, Nigeria (CNN)Under normal circumstances, Leah Sharibu would have shared a special birthday meal with her family under the bamboo covering protecting them from the Sahara desert dust swirling around them at their home in northeast Nigeria.

Rebecca Sharibu holds up a photograph that shows her daughter Leah, seated on the left in a black shirt. Leah was kidnapped in February 2018 from her school in the town of Dapchi in northern Nigeria by members of the terrorist organization Boko Haram. Photo by Chika Oduah. April 2018.

At some point during the celebration, they would have bowed their heads in prayer, asking God to bless Leah on her birthday and to make her dreams come true.

But this birthday, her 15th, was different and her family spent the day crying and fervently praying. They don’t know where she is.

Leah was one of the 110 schoolgirls kidnapped by members of the terrorist group Boko Haram in February from their school in Dapchi, in northeast Nigeria.